INTRAPOPULATION VARIABILITY IN MORPHOLOGY, COLORATION, AND BODY-SIZE IN 2 RACES OF THE LACERTID LIZARD, GALLOTIA-GALLOTI

Within and between-population variation differences in size and color pattern traits are described for the lizards Gallotia galloti eisentra uti and G. g. galloti from two different habitats. For males, snout-ve nt length (SVL), head length (HL), cheek mark length (CML), and the nu mber of ventral patches (NVP) were all greater in G. g. eisentrauti. T he first lateral patch (FLPL) was longer in males of G. g. galloti but the number of lateral blue patches (NLBP) did not differ. Considering all traits, male CML and FLPL had the greatest coefficients of variat ion in both races. Snout-vent length and HL were greater in G. g. eise ntrauti females than in G. g. galloti females, while the opposite occu rred for NLBP and NVP. Adult male to adult female SVL ratio, a measure of body size dimorphism, was 1.19 for G. g. eisentrauti and 1.21 for G. g. galloti. For most animals, lateral patch color was in the 5 PB ( purple-blue) step of the Munsell System Chart, and value and chroma we re 3-2 and 6, respectively. ANCOVA of the HL-SVL relationship showed a significant difference between male and female HL in both races; this difference may reflect differences in HL growth. The data are discuss ed in relation to information on male intrasexual competition.